DE3323221C2 - - Google Patents

Info

Publication number
DE3323221C2
DE3323221C2 DE3323221A DE3323221A DE3323221C2 DE 3323221 C2 DE3323221 C2 DE 3323221C2 DE 3323221 A DE3323221 A DE 3323221A DE 3323221 A DE3323221 A DE 3323221A DE 3323221 C2 DE3323221 C2 DE 3323221C2
Authority
DE
Germany
Prior art keywords
rolling
angle
tapered rollers
tube
diameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE3323221A
Other languages
German (de)
English (en)
Other versions
DE3323221A1 (de
DE3323221C3 (de
Inventor
Chihiro Hayashi
Kazuyuki Hyogo Jp Nakasuji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP11436382A external-priority patent/JPS594905A/ja
Priority claimed from JP7173983A external-priority patent/JPS59197305A/ja
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of DE3323221A1 publication Critical patent/DE3323221A1/de
Application granted granted Critical
Publication of DE3323221C2 publication Critical patent/DE3323221C2/de
Publication of DE3323221C3 publication Critical patent/DE3323221C3/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/20—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a non-continuous process,(e.g. skew rolling, i.e. planetary cross rolling)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Extraction Processes (AREA)
  • Tires In General (AREA)
DE3323221A 1982-06-30 1983-06-28 Verfahren und Vorrichtung zum Längen von Rohrluppen Expired - Lifetime DE3323221C3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11436382A JPS594905A (ja) 1982-06-30 1982-06-30 中空棒材の製造方法
JP7173983A JPS59197305A (ja) 1983-04-22 1983-04-22 中空棒材の製造方法

Publications (3)

Publication Number Publication Date
DE3323221A1 DE3323221A1 (de) 1984-01-05
DE3323221C2 true DE3323221C2 (enrdf_load_stackoverflow) 1994-10-06
DE3323221C3 DE3323221C3 (de) 1994-10-06

Family

ID=26412837

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3323221A Expired - Lifetime DE3323221C3 (de) 1982-06-30 1983-06-28 Verfahren und Vorrichtung zum Längen von Rohrluppen

Country Status (9)

Country Link
US (1) US4510787A (enrdf_load_stackoverflow)
AT (1) AT393805B (enrdf_load_stackoverflow)
AU (1) AU564031B2 (enrdf_load_stackoverflow)
CA (1) CA1214952A (enrdf_load_stackoverflow)
DE (1) DE3323221C3 (enrdf_load_stackoverflow)
FR (1) FR2529482B1 (enrdf_load_stackoverflow)
GB (1) GB2124118B (enrdf_load_stackoverflow)
IT (1) IT1203829B (enrdf_load_stackoverflow)
SE (1) SE450874B (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674171A (en) * 1984-04-20 1987-06-23 Lor, Inc. Heavy wall drill pipe and method of manufacture of heavy wall drill pipe
US4771811A (en) * 1984-04-20 1988-09-20 Lor, Inc. Heavy wall drill pipe and method of manufacture of heavy wall drill pipe
US5699690A (en) * 1995-06-19 1997-12-23 Sumitomo Metal Industries, Ltd. Method and apparatus for manufacturing hollow steel bars
US20080290070A1 (en) * 2007-05-25 2008-11-27 Fleming Donald P Method for manufacturing multi-pitch flashing
CN102059251A (zh) * 2010-08-31 2011-05-18 吴军 四辊行星热轧管机
RU2656901C2 (ru) * 2014-03-19 2018-06-07 Ниппон Стил Энд Сумитомо Метал Корпорейшн Способ изготовления бесшовной металлической трубы
CN106552820A (zh) * 2016-12-02 2017-04-05 河南千王钎具有限责任公司 六角形中空钢的制备方法
MX2022008596A (es) * 2020-01-14 2022-08-10 Nippon Steel Corp Metodo de produccion de tubos metalicos sin costura.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US374703A (en) * 1887-12-13 Bolls foe reducing and tapering tubes and eods
DD87291A (enrdf_load_stackoverflow) *
US1957916A (en) * 1932-07-27 1934-05-08 Ralph C Stiefel Apparatus for and method of producing metal tubes
US2063689A (en) * 1933-07-03 1936-12-08 Jones & Laughlin Steel Corp Manufacture of tubes
US3132545A (en) * 1960-05-20 1964-05-12 Vincenzo S Arata Cycloidal rolling mill
SE329584B (enrdf_load_stackoverflow) * 1966-06-16 1970-10-19 Skf Svenska Kullagerfab Ab
DE1602153B2 (de) * 1967-08-05 1975-10-16 Schloemann-Siemag Ag, 4000 Duesseldorf Schrägwalzwerk zum Reduzieren von Vollquerschnitten
DE2718219B2 (de) * 1977-04-23 1979-09-06 Hoesch Werke Ag, 4600 Dortmund Kalibrierung für die Arbeitswalzen eines Schrägwalzgerüstes
JPS55114407A (en) * 1979-02-27 1980-09-03 Nippon Steel Corp Production of steel bar having hollow part of sectional area ratio 0.3 or less and producing device
DE2910445A1 (de) * 1979-03-16 1980-09-18 Schloemann Siemag Ag Verwendung eines schraegwalzwerkes mit umlaufenden walzen mit planetenantrieb
JPS57137009A (en) * 1981-02-17 1982-08-24 Sumitomo Metal Ind Ltd Manufacture of seamless metallic pipe
FR2486831A1 (fr) * 1980-07-18 1982-01-22 Sumitomo Metal Ind Procede de fabrication de tubes metalliques sans soudures

Also Published As

Publication number Publication date
DE3323221A1 (de) 1984-01-05
GB2124118A (en) 1984-02-15
ATA239283A (de) 1991-06-15
FR2529482B1 (fr) 1987-04-17
GB2124118B (en) 1985-10-23
US4510787A (en) 1985-04-16
AT393805B (de) 1991-12-27
IT8367713A0 (it) 1983-06-29
CA1214952A (en) 1986-12-09
SE450874B (sv) 1987-08-10
SE8303710D0 (sv) 1983-06-29
FR2529482A1 (fr) 1984-01-06
IT1203829B (it) 1989-02-23
GB8317787D0 (en) 1983-08-03
DE3323221C3 (de) 1994-10-06
AU564031B2 (en) 1987-07-30
AU1628783A (en) 1984-01-05
SE8303710L (sv) 1983-12-31

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8125 Change of the main classification

Ipc: B21B 19/06

D2 Grant after examination
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8305 Restricted maintenance of patent after opposition
D4 Patent maintained restricted